Q：What are the methods for heating greenhouses?

A：
Common greenhouse heating methods include gas boilers, oil boilers, electric heating boilers, methanol boilers, etc.

Gas boilers include gas boiling water boilers, gas hot water boilers, gas steam boilers, etc. Among them, gas hot water boilers are also called gas heating boilers and gas bathing boilers. Gas boilers, as the name suggests, refer to boilers whose fuel is gas. Most people choose Gas boilers are used as boiler equipment for steam, heating and bathing. The operating cost of a gas boiler is 2-3 times that of coal, and the boiler can use CNG (compressed natural gas) and ZMG (liquefied natural gas).

Oil-fired boilers include oil-fired water boilers, oil-fired hot water boilers, oil-fired heating boilers, oil-fired bathing boilers, oil-fired steam boilers, etc. Oil-fired boilers refer to boilers that use light oil (such as diesel, kerosene), heavy oil, residual oil or crude oil as fuel. Compared with gas boilers and electric heating boilers, oil-fired boilers are more economical to operate than electric heating boilers and more convenient to use than gas-fired boilers. The operating cost is 3.5-4 times that of coal. Oil is cheap now.

Electric boiler refers to an electric heating boiler. An electric boiler is a thermal energy device that converts electrical energy into thermal energy and heats water to hot water or steam with certain parameters. Electric boilers have no furnace, flue, and chimney, and no fuel storage space is required. The electric heating boiler is fully automatic, pollution-free, noise-free, small footprint, easy to use, safe and reliable. It is an intelligent green and environmentally friendly boiler. The cost of electric energy conversion is 2.8-3.5 times that of coal, but the heat loss when electricity is converted into thermal energy is larger.

Methanol boiler is a new type of green and environmentally friendly fuel boiler, similar to oil-fired boilers. It uses alcohol-based fuels such as methanol as fuel to heat water into hot water or steam. Methanol fuel is a colorless, transparent, burning, volatile liquid at room temperature. The operating cost is lower than that of a gas-fired boiler, higher than that of a gas-fired boiler, and twice that of biomass pellets; fuel transportation is restricted and difficult to purchase; it is flammable and explosive and can easily produce harmful gases; the fuel is easy to volatilize, and improper storage can cause greater harm to workers. Easy to cause blindness.